Apparatus for cutting metals



May 5, 1925.

1,536,384 J. HARRIS APPARATUS TORl CUTTING METALS File@ Deo. 29, 419,21 2 sheets-sheet 1 May '5, 1925. I 1,536,384

J. HARRIS APPARATUS, FOR CUTTING METALS Filed Deo. 29, l921 2 Sheets-Shed?. 2

Patented May 5, 192.5.

U NIT E S 7' rarer-ir ortica.

JOHN HARRIS, OF LAKEUVOOD, GEH), ASSGNR T0 THE HARR'ES GALORIFIC COM- FANY, 0F CLEVELAND, OHXO, CORGRATION 0F OI'IIO.

APPARATUS EUR CUTTING METALS.

Application filed December To all 107mm t may concern.'

Be it known that I, JOHN HARRIS, a citi- *Aen of the United States, residing at Lakewood, in the county ot Cuyahoga and Sta-te ot Ohio, have invented a certain new and usetul Improvement in Apparatus for Cutting Metals, ot which the itollowingis a full, clear, and enact descriptioin reference being had to the accompanyingf drawings. l

This invention relates to apparatus tor cutting metals with gases, and has tor its general object to provide an apparatus of this character which. is extremely simple in construction and economical ot production, and which will enable the blow pipe employed for the cutting operation to be oper-y ated in a particularly 'effective manner.

`Further and more limited objects ot the invention will appear hereinafter; and the in vention may be defined generally as consisting ot the `combinations ot elements and parts embodied in the claims appended to and forming part hereof.

ln the drawings, which illustrate the present preferred embodiment ot my invention, Fig. l represents a plan view oft an apparatus constituting such embodiment; Fig. 2 a side elevation of the apparatus shown in Fig. l., illustrating' the manner in which a cutting` torch or blow pipe is supported thereby; and Fiss. 3, a, and 5 are sectional details corresponding, respectively, to the lines 3-3, i`-4, and 5 5 ot Fig. l and looking in the direction ot the arrows.`

The apparatus illustrated and described `herein comprises generally a concavo-conver(4 base having at the center thereof a vertical bearing, a pair ott arms pivoted vat their liti base.

ends on said bearing', a second pair ot arms each pivoted to an end of one of the tirst mentioned arms which is remote from said bearing, and a bearing,` carried jointly by the opposite ends of the second pair ot arms and constitutingr a vertical rotary support for a blow pipe.

Describing by reference characters the va rious parts illustrated herein, l denotes the This base is preferably ot metal, and may be considered as having' a central portion 1a with a pair of arms 1b projecting therefrom, the said base being; preferably semicircular in shape `whereby a concavity is formed therein for the manipulation of the blow pipe. This shape of the base enables the attached arms and the blow pipe 29, 1921. Serial No, 525,617.

to be operated within the arms lb and at a considerable distance beyond a line joining the ends ot the same without danger ot overturning' the base. Mounted in the center of the base is a stud 2, which may be threaded into an aperture 3 in such center, the stud hauling,` a head 4l. Surrounding' the aperture 3 and extending above the same is a sleeve 5 which constitutes a scat for the lower member 6 of a ball bearing, the upper member of `which is indicated at 7. the intermediate member 8 being' provided with apertures 9 tor the balls 10, which balls are engaged respectively by the `upper surface of the member 6 and by the lower surface of the race member 7.

`The upper surface ot the race member 7 is provided with a ball race 11 between which and a race 13 provided in the lower surface ot the inner end ot an arm ill a series of balls l5 are inserted, rllhe upper surface ot the same end ot' the arm `14: is `provided with a. race 1G, between which and a race 18 formed in the lower surface ot the Correspending,` end of another arm i7 a series ot balls i9 are inserted. rllhe parts 64,9, inclusive, are mounted upon the stud 2, between the head a ot the latter and the sleeve 5. i

The opposite end ot the arm 14 is pros vided with a race 20 in the upper sui-tace ther-sot.` the race surrounding' an aperture 2l throupglii which there entends a stud 22l having' a head 23 at its lower en d. (loopen ating); also with the stud is the end 24a ot an arm 24h the said arm having` an apertureitor the stud 22 and being: provided in its under surface with a race 25 cooperating with the race 2 0, balls 26 being?,` inserted between said races., Thearni 17 is also `provided at the end remote trom the stud 2 with a race similarto the race 20, said race and a set of balls (not shown) cooperating with a race similar to the race 25 in the end ot an army 27, the cooperating ends ot the `arms 17 and 27 being provided with aligned apertures for the reception of a stud 28, similar to the the opposite ends of the arms being referred to as the outer ends of said arms.

The outer ends of the arms 24 and 27 are provided each with a ring', indicated at Q9 and 30 respectively, the rings having cooperating races 31 and 32, with a series of balls 33 therein, and the said rings being pivotally mounted upon a hollow stud or sleeve havingl at its upper end a head 35. the lower end of said sleeve or stud being threaded Yfor the reception of a cooperating head and a lock nut 37. The upper surface ot the ring 30 is provided with a race 88 and the lower surface of the head 35 with a race 39 between which are inserted the balls Ll0. The sleeve provides, with therings 29 and 8O and the balls 40, a vertical anti't'riction bearing for supporting the blow pipe, indicated generally at lll (Fig. 2). The sleeve Se@ is of an internal diameter to receive the tip 42 of the blow pipe, the blow pipe being conveniently secured in place by means oit a set screw i3 mounted in the head 35.

The operation of th devicel will be readily understood. A blow pipe inserted in the sleeve 34 will be carried at the outer end of the arm assembly M, 17, 2a and :El and can be moved conveniently and without material friction to any desired position within the base l as well as beyond the said base, in the direction of the arms lb. The manner of mounting;v the bl-ow pipe enables the lat ter to direct its cutting' flame perpendicularly against the surface oi' the metal to be cut. By means of the set screw, the blow pipe may be maintained at a proper and constant distance `from any particular piece of work. The pipe may be most conveniently manipulated for the purpose of cutting varying shapes and without any danger oi? tangling the tubes, since the latter can lead away from the central pivot sleeve and, as the blow pipe turns freely with such sleeve, there will be n-o danger of tangling` the tubes no matter into what position the blow pipe may be moved b v means ot' the pivoted armassembly. A biow pipe mounted in the manner shown herein may be used as a straight-line cutter; with a guide to cut a pattern, and can always direct the cutting` jets perpendicularly to the work, enabling straightand smooth cutting?,v to be performed.

Having,r thus described my invention, what I claim is:

l. In an apparatus of the character de- .7.1

scribed, the combinati-on of a base, a vertical stud carried by said base and having an anti-friction bearing, an arm mounted upon said bearing, a second anti-friction bearing,` on said stud above the first mentioned arm, an antiriction bearing'interposed between the portions ot' the arms mounted on said stud, a stud extedinf;` through the outer end or each of the first mentioned arms, a second pair of arms having their inner ends mounted upon the studs provided at the outer ends o't the first mentioned pair of arms, respectively, anti-friction devices interposed between the outer ends ot' the tirst mentioned arms and the inner ends ot' the second mentioned arms, a hollow stud or sleeve extending through and connectingY the outer ends ot the second pair ot arms, anti-friction devices interposed between such connected ends, a head on said hollow stud or sleeve, and anti-friction devices interposed between said head and the upper surface ot the end ot the arm therebeneath.

2. rin apparatus of the character described comprisine a base, a vertical stud carried by said base, a pair of arms each having` its inner end mounted upon said stud, there being` a ball bearing tor such inner end of each arm surroundingsaid stud, a vertical stud carried by the outer end ot each oit said arms, an arm having.;I its inner end mounted upon cach o't the last mentioned studs, with a ball bearing interposed between each such inner end and the outer end of the correspondingT arm, a bearing' sleeve extendingv through the outer ends ot the second pair or arms, a ball bearingl iter the said sleeve, and a ball bear ing interposed between the connected outer portions oit' the second pair oi: arms and surrounding` the said sleeve.

In testimony whereof, I hereunto aiiix my signature.

JOHN HARRIS. 

